'Diva' remark about Andreeva: WTA chief apologises to Pegula

Women's Tennis Association (WTA) chief executive Valerie Camillo has apologised after a courtside microphone recorded American tennis player Jessica Pegula making a disparaging remark about fellow player Mirra Andreeva.

The controversy arose because a conversation Pegula had with her coach Mark Knowles on a practice court at Indian Wells in California went out on the WTA's YouTube live stream.

In the conversation, Pegula is heard calling the 19-year-old Russian player Andreeva a "diva."

The world number four was also heard criticising Andreeva's coach, former Wimbledon champion Conchita Martinez, for not correcting the French Open champion's behaviour.